Computer Knowledge

Computer Networks

2,256 Questions

Computer networks form the backbone of digital communication, connecting multiple devices to share data and resources. This area covers network architectures, transmission media, modems, and topologies like LAN. These concepts are crucial for computer knowledge sections in banking and government exams.

Network topologiesModulation and demodulationNetwork addressingFiber optic cablesWireless infrastructure

Computer Networks Questions

Multiple choice

In a bus topology, what happens when a node transmits data?

  1. All other nodes receive the data

  2. Only the intended recipient receives the data

  3. The data is broadcast to all nodes

  4. The data is sent to the central node
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a bus topology, when a node transmits data, the data is broadcast to all other nodes on the network.

Multiple choice

Which network topology is characterized by a series of interconnected nodes forming a closed loop?

  1. Bus Topology

  2. Star Topology

  3. Ring Topology

  4. Mesh Topology
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a ring topology, nodes are connected in a circular fashion, forming a closed loop.

Multiple choice

What is the primary disadvantage of a bus topology?

  1. High cost

  2. Difficult to manage

  3. Susceptible to single-point failures

  4. Low bandwidth
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bus topologies are susceptible to single-point failures because if the central cable fails, the entire network is disrupted.

Multiple choice

In a star topology, what is the role of the central node?

  1. To amplify signals

  2. To route data

  3. To provide power to nodes

  4. To store data
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In a star topology, the central node, typically a switch or router, is responsible for routing data between nodes.

Multiple choice

Which network topology is commonly used in large enterprise networks?

  1. Bus Topology

  2. Star Topology

  3. Ring Topology

  4. Mesh Topology
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mesh topologies are often used in large enterprise networks due to their high fault tolerance and ability to provide multiple paths for data transmission.

Multiple choice

Which network topology is characterized by a fully connected network, where each node is directly connected to every other node?

  1. Bus Topology

  2. Star Topology

  3. Ring Topology

  4. Mesh Topology
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In a mesh topology, each node is directly connected to every other node, providing multiple paths for data transmission.

Multiple choice

Which of these is NOT a common type of mobile device network?

  1. Wi-Fi

  2. Cellular

  3. Bluetooth

  4. NFC
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

NFC is not as common a type of mobile device network as Wi-Fi, Cellular, and Bluetooth.

Multiple choice

Which of the following is a type of network?

  1. Social network

  2. Economic network

  3. Political network

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A network is a set of interconnected nodes. Social networks, economic networks, and political networks are all types of networks.

Multiple choice

What is the primary function of a network switch?

  1. Connecting devices to the internet

  2. Routing data packets between networks

  3. Providing wireless connectivity

  4. Storing and managing data
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A network switch is a networking device that connects multiple devices to a network. It operates at Layer 2 of the OSI model and forwards data packets based on the MAC addresses of the devices.

Multiple choice

What is the term for the basic unit of data that is transmitted over a network?

  1. Packet

  2. Frame

  3. Segment

  4. Datagram
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A packet is the basic unit of data that is transmitted over a network. It consists of a header that contains information about the source and destination addresses, as well as the data itself.

Multiple choice

What is the primary function of a network router?

  1. Connecting devices to the internet

  2. Routing data packets between networks

  3. Providing wireless connectivity

  4. Storing and managing data
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A network router is a networking device that connects multiple networks and routes data packets between them. It operates at Layer 3 of the OSI model and uses routing protocols to determine the best path for data packets to take.

Multiple choice

What is the term for the process of dividing a large data transmission into smaller, more manageable packets?

  1. Fragmentation

  2. Segmentation

  3. Encapsulation

  4. Demultiplexing
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Segmentation is the process of dividing a large data transmission into smaller, more manageable packets. This is done to improve the efficiency of data transmission and to reduce the risk of data loss.

Multiple choice

What is the term for the process of combining multiple data packets into a single, larger transmission?

  1. Fragmentation

  2. Segmentation

  3. Encapsulation

  4. Demultiplexing
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Encapsulation is the process of combining multiple data packets into a single, larger transmission. This is done to improve the efficiency of data transmission and to reduce the risk of data loss.

Multiple choice

What is the term for the process of breaking a large data transmission into smaller, more manageable packets?

  1. Fragmentation

  2. Segmentation

  3. Encapsulation

  4. Demultiplexing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fragmentation is the process of breaking a large data transmission into smaller, more manageable packets. This is done to improve the efficiency of data transmission and to reduce the risk of data loss.

Multiple choice

Which network device is responsible for connecting multiple networks?

  1. Modem

  2. Router

  3. Switch

  4. Hub
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A router is a network device that connects multiple networks and routes data packets between them. It operates at Layer 3 of the OSI model and uses routing protocols to determine the best path for data packets to take.